ref: d76032ae87e535be5b924d9e88bbd67189380534
dir: /vp10/common/entropymode.c/
/*
* Copyright (c) 2010 The WebM project authors. All Rights Reserved.
*
* Use of this source code is governed by a BSD-style license
* that can be found in the LICENSE file in the root of the source
* tree. An additional intellectual property rights grant can be found
* in the file PATENTS. All contributing project authors may
* be found in the AUTHORS file in the root of the source tree.
*/
#include "vpx_mem/vpx_mem.h"
#include "vp10/common/onyxc_int.h"
#include "vp10/common/seg_common.h"
const vpx_prob vp10_kf_y_mode_prob[INTRA_MODES][INTRA_MODES][INTRA_MODES - 1] = {
{ // above = dc
{ 137, 30, 42, 148, 151, 207, 70, 52, 91 }, // left = dc
{ 92, 45, 102, 136, 116, 180, 74, 90, 100 }, // left = v
{ 73, 32, 19, 187, 222, 215, 46, 34, 100 }, // left = h
{ 91, 30, 32, 116, 121, 186, 93, 86, 94 }, // left = d45
{ 72, 35, 36, 149, 68, 206, 68, 63, 105 }, // left = d135
{ 73, 31, 28, 138, 57, 124, 55, 122, 151 }, // left = d117
{ 67, 23, 21, 140, 126, 197, 40, 37, 171 }, // left = d153
{ 86, 27, 28, 128, 154, 212, 45, 43, 53 }, // left = d207
{ 74, 32, 27, 107, 86, 160, 63, 134, 102 }, // left = d63
{ 59, 67, 44, 140, 161, 202, 78, 67, 119 } // left = tm
}, { // above = v
{ 63, 36, 126, 146, 123, 158, 60, 90, 96 }, // left = dc
{ 43, 46, 168, 134, 107, 128, 69, 142, 92 }, // left = v
{ 44, 29, 68, 159, 201, 177, 50, 57, 77 }, // left = h
{ 58, 38, 76, 114, 97, 172, 78, 133, 92 }, // left = d45
{ 46, 41, 76, 140, 63, 184, 69, 112, 57 }, // left = d135
{ 38, 32, 85, 140, 46, 112, 54, 151, 133 }, // left = d117
{ 39, 27, 61, 131, 110, 175, 44, 75, 136 }, // left = d153
{ 52, 30, 74, 113, 130, 175, 51, 64, 58 }, // left = d207
{ 47, 35, 80, 100, 74, 143, 64, 163, 74 }, // left = d63
{ 36, 61, 116, 114, 128, 162, 80, 125, 82 } // left = tm
}, { // above = h
{ 82, 26, 26, 171, 208, 204, 44, 32, 105 }, // left = dc
{ 55, 44, 68, 166, 179, 192, 57, 57, 108 }, // left = v
{ 42, 26, 11, 199, 241, 228, 23, 15, 85 }, // left = h
{ 68, 42, 19, 131, 160, 199, 55, 52, 83 }, // left = d45
{ 58, 50, 25, 139, 115, 232, 39, 52, 118 }, // left = d135
{ 50, 35, 33, 153, 104, 162, 64, 59, 131 }, // left = d117
{ 44, 24, 16, 150, 177, 202, 33, 19, 156 }, // left = d153
{ 55, 27, 12, 153, 203, 218, 26, 27, 49 }, // left = d207
{ 53, 49, 21, 110, 116, 168, 59, 80, 76 }, // left = d63
{ 38, 72, 19, 168, 203, 212, 50, 50, 107 } // left = tm
}, { // above = d45
{ 103, 26, 36, 129, 132, 201, 83, 80, 93 }, // left = dc
{ 59, 38, 83, 112, 103, 162, 98, 136, 90 }, // left = v
{ 62, 30, 23, 158, 200, 207, 59, 57, 50 }, // left = h
{ 67, 30, 29, 84, 86, 191, 102, 91, 59 }, // left = d45
{ 60, 32, 33, 112, 71, 220, 64, 89, 104 }, // left = d135
{ 53, 26, 34, 130, 56, 149, 84, 120, 103 }, // left = d117
{ 53, 21, 23, 133, 109, 210, 56, 77, 172 }, // left = d153
{ 77, 19, 29, 112, 142, 228, 55, 66, 36 }, // left = d207
{ 61, 29, 29, 93, 97, 165, 83, 175, 162 }, // left = d63
{ 47, 47, 43, 114, 137, 181, 100, 99, 95 } // left = tm
}, { // above = d135
{ 69, 23, 29, 128, 83, 199, 46, 44, 101 }, // left = dc
{ 53, 40, 55, 139, 69, 183, 61, 80, 110 }, // left = v
{ 40, 29, 19, 161, 180, 207, 43, 24, 91 }, // left = h
{ 60, 34, 19, 105, 61, 198, 53, 64, 89 }, // left = d45
{ 52, 31, 22, 158, 40, 209, 58, 62, 89 }, // left = d135
{ 44, 31, 29, 147, 46, 158, 56, 102, 198 }, // left = d117
{ 35, 19, 12, 135, 87, 209, 41, 45, 167 }, // left = d153
{ 55, 25, 21, 118, 95, 215, 38, 39, 66 }, // left = d207
{ 51, 38, 25, 113, 58, 164, 70, 93, 97 }, // left = d63
{ 47, 54, 34, 146, 108, 203, 72, 103, 151 } // left = tm
}, { // above = d117
{ 64, 19, 37, 156, 66, 138, 49, 95, 133 }, // left = dc
{ 46, 27, 80, 150, 55, 124, 55, 121, 135 }, // left = v
{ 36, 23, 27, 165, 149, 166, 54, 64, 118 }, // left = h
{ 53, 21, 36, 131, 63, 163, 60, 109, 81 }, // left = d45
{ 40, 26, 35, 154, 40, 185, 51, 97, 123 }, // left = d135
{ 35, 19, 34, 179, 19, 97, 48, 129, 124 }, // left = d117
{ 36, 20, 26, 136, 62, 164, 33, 77, 154 }, // left = d153
{ 45, 18, 32, 130, 90, 157, 40, 79, 91 }, // left = d207
{ 45, 26, 28, 129, 45, 129, 49, 147, 123 }, // left = d63
{ 38, 44, 51, 136, 74, 162, 57, 97, 121 } // left = tm
}, { // above = d153
{ 75, 17, 22, 136, 138, 185, 32, 34, 166 }, // left = dc
{ 56, 39, 58, 133, 117, 173, 48, 53, 187 }, // left = v
{ 35, 21, 12, 161, 212, 207, 20, 23, 145 }, // left = h
{ 56, 29, 19, 117, 109, 181, 55, 68, 112 }, // left = d45
{ 47, 29, 17, 153, 64, 220, 59, 51, 114 }, // left = d135
{ 46, 16, 24, 136, 76, 147, 41, 64, 172 }, // left = d117
{ 34, 17, 11, 108, 152, 187, 13, 15, 209 }, // left = d153
{ 51, 24, 14, 115, 133, 209, 32, 26, 104 }, // left = d207
{ 55, 30, 18, 122, 79, 179, 44, 88, 116 }, // left = d63
{ 37, 49, 25, 129, 168, 164, 41, 54, 148 } // left = tm
}, { // above = d207
{ 82, 22, 32, 127, 143, 213, 39, 41, 70 }, // left = dc
{ 62, 44, 61, 123, 105, 189, 48, 57, 64 }, // left = v
{ 47, 25, 17, 175, 222, 220, 24, 30, 86 }, // left = h
{ 68, 36, 17, 106, 102, 206, 59, 74, 74 }, // left = d45
{ 57, 39, 23, 151, 68, 216, 55, 63, 58 }, // left = d135
{ 49, 30, 35, 141, 70, 168, 82, 40, 115 }, // left = d117
{ 51, 25, 15, 136, 129, 202, 38, 35, 139 }, // left = d153
{ 68, 26, 16, 111, 141, 215, 29, 28, 28 }, // left = d207
{ 59, 39, 19, 114, 75, 180, 77, 104, 42 }, // left = d63
{ 40, 61, 26, 126, 152, 206, 61, 59, 93 } // left = tm
}, { // above = d63
{ 78, 23, 39, 111, 117, 170, 74, 124, 94 }, // left = dc
{ 48, 34, 86, 101, 92, 146, 78, 179, 134 }, // left = v
{ 47, 22, 24, 138, 187, 178, 68, 69, 59 }, // left = h
{ 56, 25, 33, 105, 112, 187, 95, 177, 129 }, // left = d45
{ 48, 31, 27, 114, 63, 183, 82, 116, 56 }, // left = d135
{ 43, 28, 37, 121, 63, 123, 61, 192, 169 }, // left = d117
{ 42, 17, 24, 109, 97, 177, 56, 76, 122 }, // left = d153
{ 58, 18, 28, 105, 139, 182, 70, 92, 63 }, // left = d207
{ 46, 23, 32, 74, 86, 150, 67, 183, 88 }, // left = d63
{ 36, 38, 48, 92, 122, 165, 88, 137, 91 } // left = tm
}, { // above = tm
{ 65, 70, 60, 155, 159, 199, 61, 60, 81 }, // left = dc
{ 44, 78, 115, 132, 119, 173, 71, 112, 93 }, // left = v
{ 39, 38, 21, 184, 227, 206, 42, 32, 64 }, // left = h
{ 58, 47, 36, 124, 137, 193, 80, 82, 78 }, // left = d45
{ 49, 50, 35, 144, 95, 205, 63, 78, 59 }, // left = d135
{ 41, 53, 52, 148, 71, 142, 65, 128, 51 }, // left = d117
{ 40, 36, 28, 143, 143, 202, 40, 55, 137 }, // left = d153
{ 52, 34, 29, 129, 183, 227, 42, 35, 43 }, // left = d207
{ 42, 44, 44, 104, 105, 164, 64, 130, 80 }, // left = d63
{ 43, 81, 53, 140, 169, 204, 68, 84, 72 } // left = tm
}
};
#if !CONFIG_MISC_FIXES
const vpx_prob vp10_kf_uv_mode_prob[INTRA_MODES][INTRA_MODES - 1] = {
{ 144, 11, 54, 157, 195, 130, 46, 58, 108 }, // y = dc
{ 118, 15, 123, 148, 131, 101, 44, 93, 131 }, // y = v
{ 113, 12, 23, 188, 226, 142, 26, 32, 125 }, // y = h
{ 120, 11, 50, 123, 163, 135, 64, 77, 103 }, // y = d45
{ 113, 9, 36, 155, 111, 157, 32, 44, 161 }, // y = d135
{ 116, 9, 55, 176, 76, 96, 37, 61, 149 }, // y = d117
{ 115, 9, 28, 141, 161, 167, 21, 25, 193 }, // y = d153
{ 120, 12, 32, 145, 195, 142, 32, 38, 86 }, // y = d207
{ 116, 12, 64, 120, 140, 125, 49, 115, 121 }, // y = d63
{ 102, 19, 66, 162, 182, 122, 35, 59, 128 } // y = tm
};
#endif
static const vpx_prob default_if_y_probs[BLOCK_SIZE_GROUPS][INTRA_MODES - 1] = {
{ 65, 32, 18, 144, 162, 194, 41, 51, 98 }, // block_size < 8x8
{ 132, 68, 18, 165, 217, 196, 45, 40, 78 }, // block_size < 16x16
{ 173, 80, 19, 176, 240, 193, 64, 35, 46 }, // block_size < 32x32
{ 221, 135, 38, 194, 248, 121, 96, 85, 29 } // block_size >= 32x32
};
static const vpx_prob default_uv_probs[INTRA_MODES][INTRA_MODES - 1] = {
{ 120, 7, 76, 176, 208, 126, 28, 54, 103 }, // y = dc
{ 48, 12, 154, 155, 139, 90, 34, 117, 119 }, // y = v
{ 67, 6, 25, 204, 243, 158, 13, 21, 96 }, // y = h
{ 97, 5, 44, 131, 176, 139, 48, 68, 97 }, // y = d45
{ 83, 5, 42, 156, 111, 152, 26, 49, 152 }, // y = d135
{ 80, 5, 58, 178, 74, 83, 33, 62, 145 }, // y = d117
{ 86, 5, 32, 154, 192, 168, 14, 22, 163 }, // y = d153
{ 85, 5, 32, 156, 216, 148, 19, 29, 73 }, // y = d207
{ 77, 7, 64, 116, 132, 122, 37, 126, 120 }, // y = d63
{ 101, 21, 107, 181, 192, 103, 19, 67, 125 } // y = tm
};
#if !CONFIG_MISC_FIXES
const vpx_prob vp10_kf_partition_probs[PARTITION_CONTEXTS]
[PARTITION_TYPES - 1] = {
// 8x8 -> 4x4
{ 158, 97, 94 }, // a/l both not split
{ 93, 24, 99 }, // a split, l not split
{ 85, 119, 44 }, // l split, a not split
{ 62, 59, 67 }, // a/l both split
// 16x16 -> 8x8
{ 149, 53, 53 }, // a/l both not split
{ 94, 20, 48 }, // a split, l not split
{ 83, 53, 24 }, // l split, a not split
{ 52, 18, 18 }, // a/l both split
// 32x32 -> 16x16
{ 150, 40, 39 }, // a/l both not split
{ 78, 12, 26 }, // a split, l not split
{ 67, 33, 11 }, // l split, a not split
{ 24, 7, 5 }, // a/l both split
// 64x64 -> 32x32
{ 174, 35, 49 }, // a/l both not split
{ 68, 11, 27 }, // a split, l not split
{ 57, 15, 9 }, // l split, a not split
{ 12, 3, 3 }, // a/l both split
};
#endif
static const vpx_prob default_partition_probs[PARTITION_CONTEXTS]
[PARTITION_TYPES - 1] = {
// 8x8 -> 4x4
{ 199, 122, 141 }, // a/l both not split
{ 147, 63, 159 }, // a split, l not split
{ 148, 133, 118 }, // l split, a not split
{ 121, 104, 114 }, // a/l both split
// 16x16 -> 8x8
{ 174, 73, 87 }, // a/l both not split
{ 92, 41, 83 }, // a split, l not split
{ 82, 99, 50 }, // l split, a not split
{ 53, 39, 39 }, // a/l both split
// 32x32 -> 16x16
{ 177, 58, 59 }, // a/l both not split
{ 68, 26, 63 }, // a split, l not split
{ 52, 79, 25 }, // l split, a not split
{ 17, 14, 12 }, // a/l both split
// 64x64 -> 32x32
{ 222, 34, 30 }, // a/l both not split
{ 72, 16, 44 }, // a split, l not split
{ 58, 32, 12 }, // l split, a not split
{ 10, 7, 6 }, // a/l both split
};
static const vpx_prob default_inter_mode_probs[INTER_MODE_CONTEXTS]
[INTER_MODES - 1] = {
{2, 173, 34}, // 0 = both zero mv
{7, 145, 85}, // 1 = one zero mv + one a predicted mv
{7, 166, 63}, // 2 = two predicted mvs
{7, 94, 66}, // 3 = one predicted/zero and one new mv
{8, 64, 46}, // 4 = two new mvs
{17, 81, 31}, // 5 = one intra neighbour + x
{25, 29, 30}, // 6 = two intra neighbours
};
/* Array indices are identical to previously-existing INTRAMODECONTEXTNODES. */
const vpx_tree_index vp10_intra_mode_tree[TREE_SIZE(INTRA_MODES)] = {
-DC_PRED, 2, /* 0 = DC_NODE */
-TM_PRED, 4, /* 1 = TM_NODE */
-V_PRED, 6, /* 2 = V_NODE */
8, 12, /* 3 = COM_NODE */
-H_PRED, 10, /* 4 = H_NODE */
-D135_PRED, -D117_PRED, /* 5 = D135_NODE */
-D45_PRED, 14, /* 6 = D45_NODE */
-D63_PRED, 16, /* 7 = D63_NODE */
-D153_PRED, -D207_PRED /* 8 = D153_NODE */
};
const vpx_tree_index vp10_inter_mode_tree[TREE_SIZE(INTER_MODES)] = {
-INTER_OFFSET(ZEROMV), 2,
-INTER_OFFSET(NEARESTMV), 4,
-INTER_OFFSET(NEARMV), -INTER_OFFSET(NEWMV)
};
const vpx_tree_index vp10_partition_tree[TREE_SIZE(PARTITION_TYPES)] = {
-PARTITION_NONE, 2,
-PARTITION_HORZ, 4,
-PARTITION_VERT, -PARTITION_SPLIT
};
static const vpx_prob default_intra_inter_p[INTRA_INTER_CONTEXTS] = {
9, 102, 187, 225
};
static const vpx_prob default_comp_inter_p[COMP_INTER_CONTEXTS] = {
239, 183, 119, 96, 41
};
static const vpx_prob default_comp_ref_p[REF_CONTEXTS] = {
50, 126, 123, 221, 226
};
static const vpx_prob default_single_ref_p[REF_CONTEXTS][2] = {
{ 33, 16 },
{ 77, 74 },
{ 142, 142 },
{ 172, 170 },
{ 238, 247 }
};
static const struct tx_probs default_tx_probs = {
{ { 3, 136, 37 },
{ 5, 52, 13 } },
{ { 20, 152 },
{ 15, 101 } },
{ { 100 },
{ 66 } }
};
const vpx_tree_index vp10_palette_size_tree[TREE_SIZE(PALETTE_SIZES)] = {
-TWO_COLORS, 2,
-THREE_COLORS, 4,
-FOUR_COLORS, 6,
-FIVE_COLORS, 8,
-SIX_COLORS, 10,
-SEVEN_COLORS, -EIGHT_COLORS,
};
// TODO(huisu): tune these probs
const vpx_prob
vp10_default_palette_y_size_prob[PALETTE_BLOCK_SIZES][PALETTE_SIZES - 1] = {
{ 96, 89, 100, 64, 77, 130},
{ 22, 15, 44, 16, 34, 82},
{ 30, 19, 57, 18, 38, 86},
{ 94, 36, 104, 23, 43, 92},
{ 116, 76, 107, 46, 65, 105},
{ 112, 82, 94, 40, 70, 112},
{ 147, 124, 123, 58, 69, 103},
{ 180, 113, 136, 49, 45, 114},
{ 107, 70, 87, 49, 154, 156},
{ 98, 105, 142, 63, 64, 152},
};
const vpx_prob
vp10_default_palette_uv_size_prob[PALETTE_BLOCK_SIZES][PALETTE_SIZES - 1] = {
{ 160, 196, 228, 213, 175, 230},
{ 87, 148, 208, 141, 166, 163},
{ 72, 151, 204, 139, 155, 161},
{ 78, 135, 171, 104, 120, 173},
{ 59, 92, 131, 78, 92, 142},
{ 75, 118, 149, 84, 90, 128},
{ 89, 87, 92, 66, 66, 128},
{ 67, 53, 54, 55, 66, 93},
{ 120, 130, 83, 171, 75, 214},
{ 72, 55, 66, 68, 79, 107},
};
const vpx_prob
vp10_default_palette_y_mode_prob[PALETTE_BLOCK_SIZES][PALETTE_Y_MODE_CONTEXTS]
= {
{ 240, 180, 100, },
{ 240, 180, 100, },
{ 240, 180, 100, },
{ 240, 180, 100, },
{ 240, 180, 100, },
{ 240, 180, 100, },
{ 240, 180, 100, },
{ 240, 180, 100, },
{ 240, 180, 100, },
{ 240, 180, 100, },
};
const vpx_prob default_uv_palette_mode_prob[2] = {
253, 229
};
const vpx_tree_index
vp10_palette_color_tree[PALETTE_MAX_SIZE - 1][TREE_SIZE(PALETTE_COLORS)] = {
{ // 2 colors
-PALETTE_COLOR_ONE, -PALETTE_COLOR_TWO,
},
{ // 3 colors
-PALETTE_COLOR_ONE, 2,
-PALETTE_COLOR_TWO, -PALETTE_COLOR_THREE,
},
{ // 4 colors
-PALETTE_COLOR_ONE, 2,
-PALETTE_COLOR_TWO, 4,
-PALETTE_COLOR_THREE, -PALETTE_COLOR_FOUR,
},
{ // 5 colors
-PALETTE_COLOR_ONE, 2,
-PALETTE_COLOR_TWO, 4,
-PALETTE_COLOR_THREE, 6,
-PALETTE_COLOR_FOUR, -PALETTE_COLOR_FIVE,
},
{ // 6 colors
-PALETTE_COLOR_ONE, 2,
-PALETTE_COLOR_TWO, 4,
-PALETTE_COLOR_THREE, 6,
-PALETTE_COLOR_FOUR, 8,
-PALETTE_COLOR_FIVE, -PALETTE_COLOR_SIX,
},
{ // 7 colors
-PALETTE_COLOR_ONE, 2,
-PALETTE_COLOR_TWO, 4,
-PALETTE_COLOR_THREE, 6,
-PALETTE_COLOR_FOUR, 8,
-PALETTE_COLOR_FIVE, 10,
-PALETTE_COLOR_SIX, -PALETTE_COLOR_SEVEN,
},
{ // 8 colors
-PALETTE_COLOR_ONE, 2,
-PALETTE_COLOR_TWO, 4,
-PALETTE_COLOR_THREE, 6,
-PALETTE_COLOR_FOUR, 8,
-PALETTE_COLOR_FIVE, 10,
-PALETTE_COLOR_SIX, 12,
-PALETTE_COLOR_SEVEN, -PALETTE_COLOR_EIGHT,
},
};
const vpx_prob vp10_default_palette_y_color_prob
[PALETTE_MAX_SIZE - 1][PALETTE_COLOR_CONTEXTS][PALETTE_COLORS - 1] = {
{ // 2 colors
{ 230, 255, 128, 128, 128, 128, 128 },
{ 214, 255, 128, 128, 128, 128, 128 },
{ 128, 128, 128, 128, 128, 128, 128 },
{ 128, 128, 128, 128, 128, 128, 128 },
{ 128, 128, 128, 128, 128, 128, 128 },
{ 240, 255, 128, 128, 128, 128, 128 },
{ 73, 255, 128, 128, 128, 128, 128 },
{ 128, 128, 128, 128, 128, 128, 128 },
{ 130, 255, 128, 128, 128, 128, 128 },
{ 227, 255, 128, 128, 128, 128, 128 },
{ 128, 128, 128, 128, 128, 128, 128 },
{ 188, 255, 128, 128, 128, 128, 128 },
{ 75, 255, 128, 128, 128, 128, 128 },
{ 250, 255, 128, 128, 128, 128, 128 },
{ 223, 255, 128, 128, 128, 128, 128 },
{ 252, 255, 128, 128, 128, 128, 128 },
}, { // 3 colors
{ 229, 137, 255, 128, 128, 128, 128 },
{ 197, 120, 255, 128, 128, 128, 128 },
{ 107, 195, 255, 128, 128, 128, 128 },
{ 128, 128, 128, 128, 128, 128, 128 },
{ 27, 151, 255, 128, 128, 128, 128 },
{ 230, 130, 255, 128, 128, 128, 128 },
{ 37, 230, 255, 128, 128, 128, 128 },
{ 67, 221, 255, 128, 128, 128, 128 },
{ 124, 230, 255, 128, 128, 128, 128 },
{ 195, 109, 255, 128, 128, 128, 128 },
{ 99, 122, 255, 128, 128, 128, 128 },
{ 205, 208, 255, 128, 128, 128, 128 },
{ 40, 235, 255, 128, 128, 128, 128 },
{ 251, 132, 255, 128, 128, 128, 128 },
{ 237, 186, 255, 128, 128, 128, 128 },
{ 253, 112, 255, 128, 128, 128, 128 },
}, { // 4 colors
{ 195, 87, 128, 255, 128, 128, 128 },
{ 143, 100, 123, 255, 128, 128, 128 },
{ 94, 124, 119, 255, 128, 128, 128 },
{ 77, 91, 130, 255, 128, 128, 128 },
{ 39, 114, 178, 255, 128, 128, 128 },
{ 222, 94, 125, 255, 128, 128, 128 },
{ 44, 203, 132, 255, 128, 128, 128 },
{ 68, 175, 122, 255, 128, 128, 128 },
{ 110, 187, 124, 255, 128, 128, 128 },
{ 152, 91, 128, 255, 128, 128, 128 },
{ 70, 109, 181, 255, 128, 128, 128 },
{ 133, 113, 164, 255, 128, 128, 128 },
{ 47, 205, 133, 255, 128, 128, 128 },
{ 247, 94, 136, 255, 128, 128, 128 },
{ 205, 122, 146, 255, 128, 128, 128 },
{ 251, 100, 141, 255, 128, 128, 128 },
}, { // 5 colors
{ 195, 65, 84, 125, 255, 128, 128 },
{ 150, 76, 84, 121, 255, 128, 128 },
{ 94, 110, 81, 117, 255, 128, 128 },
{ 79, 85, 91, 139, 255, 128, 128 },
{ 26, 102, 139, 127, 255, 128, 128 },
{ 220, 73, 91, 119, 255, 128, 128 },
{ 38, 203, 86, 127, 255, 128, 128 },
{ 61, 186, 72, 124, 255, 128, 128 },
{ 132, 199, 84, 128, 255, 128, 128 },
{ 172, 52, 62, 120, 255, 128, 128 },
{ 102, 89, 121, 122, 255, 128, 128 },
{ 182, 48, 69, 186, 255, 128, 128 },
{ 36, 206, 87, 126, 255, 128, 128 },
{ 249, 55, 67, 122, 255, 128, 128 },
{ 218, 88, 75, 122, 255, 128, 128 },
{ 253, 64, 80, 119, 255, 128, 128 },
}, { // 6 colors
{ 182, 54, 64, 75, 118, 255, 128 },
{ 126, 67, 70, 76, 116, 255, 128 },
{ 79, 92, 67, 85, 120, 255, 128 },
{ 63, 61, 81, 118, 132, 255, 128 },
{ 21, 80, 105, 83, 119, 255, 128 },
{ 215, 72, 74, 74, 111, 255, 128 },
{ 50, 176, 63, 79, 120, 255, 128 },
{ 72, 148, 66, 77, 120, 255, 128 },
{ 105, 177, 57, 78, 130, 255, 128 },
{ 150, 66, 66, 80, 127, 255, 128 },
{ 81, 76, 109, 85, 116, 255, 128 },
{ 113, 81, 62, 96, 148, 255, 128 },
{ 54, 179, 69, 82, 121, 255, 128 },
{ 244, 47, 48, 67, 118, 255, 128 },
{ 198, 83, 53, 65, 121, 255, 128 },
{ 250, 42, 51, 69, 110, 255, 128 },
}, { // 7 colors
{ 182, 45, 54, 62, 74, 113, 255 },
{ 124, 63, 57, 62, 77, 114, 255 },
{ 77, 80, 56, 66, 76, 117, 255 },
{ 63, 57, 69, 98, 85, 131, 255 },
{ 19, 81, 98, 63, 80, 116, 255 },
{ 215, 56, 60, 63, 68, 105, 255 },
{ 50, 174, 50, 60, 79, 118, 255 },
{ 68, 151, 50, 58, 73, 117, 255 },
{ 104, 182, 53, 57, 79, 127, 255 },
{ 156, 50, 51, 63, 77, 111, 255 },
{ 88, 67, 97, 59, 82, 120, 255 },
{ 114, 81, 46, 65, 103, 132, 255 },
{ 55, 166, 57, 66, 82, 120, 255 },
{ 245, 34, 38, 43, 63, 114, 255 },
{ 203, 68, 45, 47, 60, 118, 255 },
{ 250, 35, 37, 47, 66, 110, 255 },
}, { // 8 colors
{ 180, 43, 46, 50, 56, 69, 109 },
{ 116, 53, 51, 49, 57, 73, 115 },
{ 79, 70, 49, 50, 59, 74, 117 },
{ 60, 54, 57, 70, 62, 83, 129 },
{ 20, 73, 85, 52, 66, 81, 119 },
{ 213, 56, 52, 49, 53, 62, 104 },
{ 48, 161, 41, 45, 56, 77, 116 },
{ 68, 139, 40, 47, 54, 71, 116 },
{ 123, 166, 42, 43, 52, 76, 130 },
{ 153, 44, 44, 47, 54, 79, 129 },
{ 87, 64, 83, 49, 60, 75, 127 },
{ 131, 68, 43, 48, 73, 96, 130 },
{ 55, 152, 45, 51, 64, 77, 113 },
{ 243, 30, 28, 33, 41, 65, 114 },
{ 202, 56, 35, 36, 42, 63, 123 },
{ 249, 31, 29, 32, 45, 68, 111 },
}
};
const vpx_prob vp10_default_palette_uv_color_prob
[PALETTE_MAX_SIZE - 1][PALETTE_COLOR_CONTEXTS][PALETTE_COLORS - 1] = {
{ // 2 colors
{ 228, 255, 128, 128, 128, 128, 128 },
{ 195, 255, 128, 128, 128, 128, 128 },
{ 128, 128, 128, 128, 128, 128, 128 },
{ 128, 128, 128, 128, 128, 128, 128 },
{ 128, 128, 128, 128, 128, 128, 128 },
{ 228, 255, 128, 128, 128, 128, 128 },
{ 71, 255, 128, 128, 128, 128, 128 },
{ 128, 128, 128, 128, 128, 128, 128 },
{ 129, 255, 128, 128, 128, 128, 128 },
{ 206, 255, 128, 128, 128, 128, 128 },
{ 128, 128, 128, 128, 128, 128, 128 },
{ 136, 255, 128, 128, 128, 128, 128 },
{ 98, 255, 128, 128, 128, 128, 128 },
{ 236, 255, 128, 128, 128, 128, 128 },
{ 222, 255, 128, 128, 128, 128, 128 },
{ 249, 255, 128, 128, 128, 128, 128 },
}, { // 3 colors
{ 198, 136, 255, 128, 128, 128, 128 },
{ 178, 105, 255, 128, 128, 128, 128 },
{ 100, 206, 255, 128, 128, 128, 128 },
{ 128, 128, 128, 128, 128, 128, 128 },
{ 12, 136, 255, 128, 128, 128, 128 },
{ 219, 134, 255, 128, 128, 128, 128 },
{ 50, 198, 255, 128, 128, 128, 128 },
{ 61, 231, 255, 128, 128, 128, 128 },
{ 110, 209, 255, 128, 128, 128, 128 },
{ 173, 106, 255, 128, 128, 128, 128 },
{ 145, 166, 255, 128, 128, 128, 128 },
{ 156, 175, 255, 128, 128, 128, 128 },
{ 69, 183, 255, 128, 128, 128, 128 },
{ 241, 163, 255, 128, 128, 128, 128 },
{ 224, 160, 255, 128, 128, 128, 128 },
{ 246, 154, 255, 128, 128, 128, 128 },
}, { // 4 colors
{ 173, 88, 143, 255, 128, 128, 128 },
{ 146, 81, 127, 255, 128, 128, 128 },
{ 84, 134, 102, 255, 128, 128, 128 },
{ 69, 138, 140, 255, 128, 128, 128 },
{ 31, 103, 200, 255, 128, 128, 128 },
{ 217, 101, 139, 255, 128, 128, 128 },
{ 51, 174, 121, 255, 128, 128, 128 },
{ 64, 177, 109, 255, 128, 128, 128 },
{ 96, 179, 145, 255, 128, 128, 128 },
{ 164, 77, 114, 255, 128, 128, 128 },
{ 87, 94, 156, 255, 128, 128, 128 },
{ 105, 57, 173, 255, 128, 128, 128 },
{ 63, 158, 137, 255, 128, 128, 128 },
{ 236, 102, 156, 255, 128, 128, 128 },
{ 197, 115, 153, 255, 128, 128, 128 },
{ 245, 106, 154, 255, 128, 128, 128 },
}, { // 5 colors
{ 179, 64, 97, 129, 255, 128, 128 },
{ 137, 56, 88, 125, 255, 128, 128 },
{ 82, 107, 61, 118, 255, 128, 128 },
{ 59, 113, 86, 115, 255, 128, 128 },
{ 23, 88, 118, 130, 255, 128, 128 },
{ 213, 66, 90, 125, 255, 128, 128 },
{ 37, 181, 103, 121, 255, 128, 128 },
{ 47, 188, 61, 131, 255, 128, 128 },
{ 104, 185, 103, 144, 255, 128, 128 },
{ 163, 39, 76, 112, 255, 128, 128 },
{ 94, 74, 131, 126, 255, 128, 128 },
{ 142, 42, 103, 163, 255, 128, 128 },
{ 53, 162, 99, 149, 255, 128, 128 },
{ 239, 54, 84, 108, 255, 128, 128 },
{ 203, 84, 110, 147, 255, 128, 128 },
{ 248, 70, 105, 151, 255, 128, 128 },
}, { // 6 colors
{ 189, 50, 67, 90, 130, 255, 128 },
{ 114, 50, 55, 90, 123, 255, 128 },
{ 66, 76, 54, 82, 128, 255, 128 },
{ 43, 69, 69, 80, 129, 255, 128 },
{ 22, 59, 87, 88, 141, 255, 128 },
{ 203, 49, 68, 87, 122, 255, 128 },
{ 43, 157, 74, 104, 146, 255, 128 },
{ 54, 138, 51, 95, 138, 255, 128 },
{ 82, 171, 58, 102, 146, 255, 128 },
{ 129, 38, 59, 64, 168, 255, 128 },
{ 56, 67, 119, 92, 112, 255, 128 },
{ 96, 62, 53, 132, 82, 255, 128 },
{ 60, 147, 77, 108, 145, 255, 128 },
{ 238, 76, 73, 93, 148, 255, 128 },
{ 189, 86, 73, 103, 157, 255, 128 },
{ 246, 62, 75, 83, 167, 255, 128 },
}, { // 7 colors
{ 179, 42, 51, 73, 99, 134, 255 },
{ 119, 52, 52, 61, 64, 114, 255 },
{ 53, 77, 35, 65, 71, 131, 255 },
{ 38, 70, 51, 68, 89, 144, 255 },
{ 23, 65, 128, 73, 97, 131, 255 },
{ 210, 47, 52, 63, 81, 143, 255 },
{ 42, 159, 57, 68, 98, 143, 255 },
{ 49, 153, 45, 82, 93, 143, 255 },
{ 81, 169, 52, 72, 113, 151, 255 },
{ 136, 46, 35, 56, 75, 96, 255 },
{ 57, 84, 109, 47, 107, 131, 255 },
{ 128, 78, 57, 36, 128, 85, 255 },
{ 54, 149, 68, 77, 94, 153, 255 },
{ 243, 58, 50, 71, 81, 167, 255 },
{ 189, 92, 64, 70, 121, 173, 255 },
{ 248, 35, 38, 51, 82, 201, 255 },
}, { // 8 colors
{ 201, 40, 36, 42, 64, 92, 123 },
{ 116, 43, 33, 43, 73, 102, 128 },
{ 46, 77, 37, 69, 62, 78, 150 },
{ 40, 65, 52, 50, 76, 89, 133 },
{ 28, 48, 91, 17, 64, 77, 133 },
{ 218, 43, 43, 37, 56, 72, 163 },
{ 41, 155, 44, 83, 82, 129, 180 },
{ 44, 141, 29, 55, 64, 89, 147 },
{ 92, 166, 48, 45, 59, 126, 179 },
{ 169, 35, 49, 41, 36, 99, 139 },
{ 55, 77, 77, 56, 60, 75, 156 },
{ 155, 81, 51, 64, 57, 182, 255 },
{ 60, 134, 49, 49, 93, 128, 174 },
{ 244, 98, 51, 46, 22, 73, 238 },
{ 189, 70, 40, 87, 93, 79, 201 },
{ 248, 54, 49, 40, 29, 42, 227 },
}
};
static const int palette_color_context_lookup[PALETTE_COLOR_CONTEXTS] = {
// (3, 0, 0, 0), (3, 2, 0, 0), (3, 3, 2, 0), (3, 3, 2, 2),
3993, 4235, 4378, 4380,
// (4, 3, 3, 0), (5, 0, 0, 0), (5, 3, 0, 0), (5, 3, 2, 0),
5720, 6655, 7018, 7040,
// (5, 5, 0, 0), (6, 2, 0, 0), (6, 2, 2, 0), (6, 4, 0, 0),
7260, 8228, 8250, 8470,
// (7, 3, 0, 0), (8, 0, 0, 0), (8, 2, 0, 0), (10, 0, 0, 0)
9680, 10648, 10890, 13310
};
int vp10_get_palette_color_context(const uint8_t *color_map, int cols,
int r, int c, int n, int *color_order) {
int i, j, max, max_idx, temp;
int scores[PALETTE_MAX_SIZE + 10];
int weights[4] = {3, 2, 3, 2};
int color_ctx = 0;
int color_neighbors[4];
assert(n <= PALETTE_MAX_SIZE);
if (c - 1 >= 0)
color_neighbors[0] = color_map[r * cols + c - 1];
else
color_neighbors[0] = -1;
if (c - 1 >= 0 && r - 1 >= 0)
color_neighbors[1] = color_map[(r - 1) * cols + c - 1];
else
color_neighbors[1] = -1;
if (r - 1 >= 0)
color_neighbors[2] = color_map[(r - 1) * cols + c];
else
color_neighbors[2] = -1;
if (r - 1 >= 0 && c + 1 <= cols - 1)
color_neighbors[3] = color_map[(r - 1) * cols + c + 1];
else
color_neighbors[3] = -1;
for (i = 0; i < PALETTE_MAX_SIZE; ++i)
color_order[i] = i;
memset(scores, 0, PALETTE_MAX_SIZE * sizeof(scores[0]));
for (i = 0; i < 4; ++i) {
if (color_neighbors[i] >= 0)
scores[color_neighbors[i]] += weights[i];
}
for (i = 0; i < 4; ++i) {
max = scores[i];
max_idx = i;
j = i + 1;
while (j < n) {
if (scores[j] > max) {
max = scores[j];
max_idx = j;
}
++j;
}
if (max_idx != i) {
temp = scores[i];
scores[i] = scores[max_idx];
scores[max_idx] = temp;
temp = color_order[i];
color_order[i] = color_order[max_idx];
color_order[max_idx] = temp;
}
}
for (i = 0; i < 4; ++i)
color_ctx = color_ctx * 11 + scores[i];
for (i = 0; i < PALETTE_COLOR_CONTEXTS; ++i)
if (color_ctx == palette_color_context_lookup[i]) {
color_ctx = i;
break;
}
if (color_ctx >= PALETTE_COLOR_CONTEXTS)
color_ctx = 0;
return color_ctx;
}
void vp10_tx_counts_to_branch_counts_32x32(const unsigned int *tx_count_32x32p,
unsigned int (*ct_32x32p)[2]) {
ct_32x32p[0][0] = tx_count_32x32p[TX_4X4];
ct_32x32p[0][1] = tx_count_32x32p[TX_8X8] +
tx_count_32x32p[TX_16X16] +
tx_count_32x32p[TX_32X32];
ct_32x32p[1][0] = tx_count_32x32p[TX_8X8];
ct_32x32p[1][1] = tx_count_32x32p[TX_16X16] +
tx_count_32x32p[TX_32X32];
ct_32x32p[2][0] = tx_count_32x32p[TX_16X16];
ct_32x32p[2][1] = tx_count_32x32p[TX_32X32];
}
void vp10_tx_counts_to_branch_counts_16x16(const unsigned int *tx_count_16x16p,
unsigned int (*ct_16x16p)[2]) {
ct_16x16p[0][0] = tx_count_16x16p[TX_4X4];
ct_16x16p[0][1] = tx_count_16x16p[TX_8X8] + tx_count_16x16p[TX_16X16];
ct_16x16p[1][0] = tx_count_16x16p[TX_8X8];
ct_16x16p[1][1] = tx_count_16x16p[TX_16X16];
}
void vp10_tx_counts_to_branch_counts_8x8(const unsigned int *tx_count_8x8p,
unsigned int (*ct_8x8p)[2]) {
ct_8x8p[0][0] = tx_count_8x8p[TX_4X4];
ct_8x8p[0][1] = tx_count_8x8p[TX_8X8];
}
static const vpx_prob default_skip_probs[SKIP_CONTEXTS] = {
192, 128, 64
};
static const vpx_prob default_switchable_interp_prob[SWITCHABLE_FILTER_CONTEXTS]
[SWITCHABLE_FILTERS - 1] = {
{ 235, 162, },
{ 36, 255, },
{ 34, 3, },
{ 149, 144, },
};
#if CONFIG_MISC_FIXES
// FIXME(someone) need real defaults here
static const struct segmentation_probs default_seg_probs = {
{ 128, 128, 128, 128, 128, 128, 128 },
{ 128, 128, 128 },
};
#endif
static void init_mode_probs(FRAME_CONTEXT *fc) {
vp10_copy(fc->uv_mode_prob, default_uv_probs);
vp10_copy(fc->y_mode_prob, default_if_y_probs);
vp10_copy(fc->switchable_interp_prob, default_switchable_interp_prob);
vp10_copy(fc->partition_prob, default_partition_probs);
vp10_copy(fc->intra_inter_prob, default_intra_inter_p);
vp10_copy(fc->comp_inter_prob, default_comp_inter_p);
vp10_copy(fc->comp_ref_prob, default_comp_ref_p);
vp10_copy(fc->single_ref_prob, default_single_ref_p);
fc->tx_probs = default_tx_probs;
vp10_copy(fc->skip_probs, default_skip_probs);
vp10_copy(fc->inter_mode_probs, default_inter_mode_probs);
#if CONFIG_MISC_FIXES
vp10_copy(fc->seg.tree_probs, default_seg_probs.tree_probs);
vp10_copy(fc->seg.pred_probs, default_seg_probs.pred_probs);
#endif
}
const vpx_tree_index vp10_switchable_interp_tree
[TREE_SIZE(SWITCHABLE_FILTERS)] = {
-EIGHTTAP, 2,
-EIGHTTAP_SMOOTH, -EIGHTTAP_SHARP
};
void vp10_adapt_inter_frame_probs(VP10_COMMON *cm) {
int i, j;
FRAME_CONTEXT *fc = cm->fc;
const FRAME_CONTEXT *pre_fc = &cm->frame_contexts[cm->frame_context_idx];
const FRAME_COUNTS *counts = &cm->counts;
for (i = 0; i < INTRA_INTER_CONTEXTS; i++)
fc->intra_inter_prob[i] = mode_mv_merge_probs(pre_fc->intra_inter_prob[i],
counts->intra_inter[i]);
for (i = 0; i < COMP_INTER_CONTEXTS; i++)
fc->comp_inter_prob[i] = mode_mv_merge_probs(pre_fc->comp_inter_prob[i],
counts->comp_inter[i]);
for (i = 0; i < REF_CONTEXTS; i++)
fc->comp_ref_prob[i] = mode_mv_merge_probs(pre_fc->comp_ref_prob[i],
counts->comp_ref[i]);
for (i = 0; i < REF_CONTEXTS; i++)
for (j = 0; j < 2; j++)
fc->single_ref_prob[i][j] = mode_mv_merge_probs(
pre_fc->single_ref_prob[i][j], counts->single_ref[i][j]);
for (i = 0; i < INTER_MODE_CONTEXTS; i++)
vpx_tree_merge_probs(vp10_inter_mode_tree, pre_fc->inter_mode_probs[i],
counts->inter_mode[i], fc->inter_mode_probs[i]);
for (i = 0; i < BLOCK_SIZE_GROUPS; i++)
vpx_tree_merge_probs(vp10_intra_mode_tree, pre_fc->y_mode_prob[i],
counts->y_mode[i], fc->y_mode_prob[i]);
#if !CONFIG_MISC_FIXES
for (i = 0; i < INTRA_MODES; ++i)
vpx_tree_merge_probs(vp10_intra_mode_tree, pre_fc->uv_mode_prob[i],
counts->uv_mode[i], fc->uv_mode_prob[i]);
for (i = 0; i < PARTITION_CONTEXTS; i++)
vpx_tree_merge_probs(vp10_partition_tree, pre_fc->partition_prob[i],
counts->partition[i], fc->partition_prob[i]);
#endif
if (cm->interp_filter == SWITCHABLE) {
for (i = 0; i < SWITCHABLE_FILTER_CONTEXTS; i++)
vpx_tree_merge_probs(vp10_switchable_interp_tree,
pre_fc->switchable_interp_prob[i],
counts->switchable_interp[i],
fc->switchable_interp_prob[i]);
}
}
void vp10_adapt_intra_frame_probs(VP10_COMMON *cm) {
int i;
FRAME_CONTEXT *fc = cm->fc;
const FRAME_CONTEXT *pre_fc = &cm->frame_contexts[cm->frame_context_idx];
const FRAME_COUNTS *counts = &cm->counts;
if (cm->tx_mode == TX_MODE_SELECT) {
int j;
unsigned int branch_ct_8x8p[TX_SIZES - 3][2];
unsigned int branch_ct_16x16p[TX_SIZES - 2][2];
unsigned int branch_ct_32x32p[TX_SIZES - 1][2];
for (i = 0; i < TX_SIZE_CONTEXTS; ++i) {
vp10_tx_counts_to_branch_counts_8x8(counts->tx.p8x8[i], branch_ct_8x8p);
for (j = 0; j < TX_SIZES - 3; ++j)
fc->tx_probs.p8x8[i][j] = mode_mv_merge_probs(
pre_fc->tx_probs.p8x8[i][j], branch_ct_8x8p[j]);
vp10_tx_counts_to_branch_counts_16x16(counts->tx.p16x16[i], branch_ct_16x16p);
for (j = 0; j < TX_SIZES - 2; ++j)
fc->tx_probs.p16x16[i][j] = mode_mv_merge_probs(
pre_fc->tx_probs.p16x16[i][j], branch_ct_16x16p[j]);
vp10_tx_counts_to_branch_counts_32x32(counts->tx.p32x32[i], branch_ct_32x32p);
for (j = 0; j < TX_SIZES - 1; ++j)
fc->tx_probs.p32x32[i][j] = mode_mv_merge_probs(
pre_fc->tx_probs.p32x32[i][j], branch_ct_32x32p[j]);
}
}
for (i = 0; i < SKIP_CONTEXTS; ++i)
fc->skip_probs[i] = mode_mv_merge_probs(
pre_fc->skip_probs[i], counts->skip[i]);
#if CONFIG_MISC_FIXES
if (cm->seg.temporal_update) {
for (i = 0; i < PREDICTION_PROBS; i++)
fc->seg.pred_probs[i] = mode_mv_merge_probs(pre_fc->seg.pred_probs[i],
counts->seg.pred[i]);
vpx_tree_merge_probs(vp10_segment_tree, pre_fc->seg.tree_probs,
counts->seg.tree_mispred, fc->seg.tree_probs);
} else {
vpx_tree_merge_probs(vp10_segment_tree, pre_fc->seg.tree_probs,
counts->seg.tree_total, fc->seg.tree_probs);
}
for (i = 0; i < INTRA_MODES; ++i)
vpx_tree_merge_probs(vp10_intra_mode_tree, pre_fc->uv_mode_prob[i],
counts->uv_mode[i], fc->uv_mode_prob[i]);
for (i = 0; i < PARTITION_CONTEXTS; i++)
vpx_tree_merge_probs(vp10_partition_tree, pre_fc->partition_prob[i],
counts->partition[i], fc->partition_prob[i]);
#endif
}
static void set_default_lf_deltas(struct loopfilter *lf) {
lf->mode_ref_delta_enabled = 1;
lf->mode_ref_delta_update = 1;
lf->ref_deltas[INTRA_FRAME] = 1;
lf->ref_deltas[LAST_FRAME] = 0;
lf->ref_deltas[GOLDEN_FRAME] = -1;
lf->ref_deltas[ALTREF_FRAME] = -1;
lf->mode_deltas[0] = 0;
lf->mode_deltas[1] = 0;
}
void vp10_setup_past_independence(VP10_COMMON *cm) {
// Reset the segment feature data to the default stats:
// Features disabled, 0, with delta coding (Default state).
struct loopfilter *const lf = &cm->lf;
int i;
vp10_clearall_segfeatures(&cm->seg);
cm->seg.abs_delta = SEGMENT_DELTADATA;
if (cm->last_frame_seg_map && !cm->frame_parallel_decode)
memset(cm->last_frame_seg_map, 0, (cm->mi_rows * cm->mi_cols));
if (cm->current_frame_seg_map)
memset(cm->current_frame_seg_map, 0, (cm->mi_rows * cm->mi_cols));
// Reset the mode ref deltas for loop filter
vp10_zero(lf->last_ref_deltas);
vp10_zero(lf->last_mode_deltas);
set_default_lf_deltas(lf);
// To force update of the sharpness
lf->last_sharpness_level = -1;
vp10_default_coef_probs(cm);
init_mode_probs(cm->fc);
vp10_init_mv_probs(cm);
cm->fc->initialized = 1;
if (cm->frame_type == KEY_FRAME || cm->error_resilient_mode ||
cm->reset_frame_context == RESET_FRAME_CONTEXT_ALL) {
// Reset all frame contexts.
for (i = 0; i < FRAME_CONTEXTS; ++i)
cm->frame_contexts[i] = *cm->fc;
} else if (cm->reset_frame_context == RESET_FRAME_CONTEXT_CURRENT) {
// Reset only the frame context specified in the frame header.
cm->frame_contexts[cm->frame_context_idx] = *cm->fc;
}
// prev_mip will only be allocated in encoder.
if (frame_is_intra_only(cm) && cm->prev_mip && !cm->frame_parallel_decode)
memset(cm->prev_mip, 0,
cm->mi_stride * (cm->mi_rows + 1) * sizeof(*cm->prev_mip));
cm->frame_context_idx = 0;
}